Ore mixer and sampler.



No. 655,478. Patented Aug. 7, I900. J. M. DAMM.

ORE MIXER AND SAMPLEB.

. (Application filed Feb. 8, 1900.) (No Model.) 2 Sheatv-Sheat l.

iii

UNITED STATES PATENT OFFICE.

JOSE MAXIMILIANO DAMM, OF DURANGO, MEXICO.

ORE MIXER AND SAMPLER.

SPECIFICATION forming part of Letters Patent No; 655,478, dated August'7, 1900.

Application filed February 8, 1900- Sofia-1N0. 4,507. (No model.)

To all whom it may concern.-

Be it known that 1, Jose MAXIMILIANO DAMM, a citizen of Mexico, residingat Durango, in the State of Durango, Mexico, have invented certain newand useful Improvements in Ore Mixers and Samplers; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the artto which itappertains to make and use the same.

My invention relates to a novel construction in a device for mixing andtaking samples from ore, the object being to provide a simple andefficient device of this character; and it consists in the features ofconstruction and combinations of parts hereinafter fully described andclaimed.

In the accompanying drawings, illustrating my invention, Figure l is avertical longitudinal section of my device on the line 1 1 of Fig. 2.Fig.2 is a horizontal section of same on the line 2 2 of Fig. 1. v

My device is designed to be mounted in the upper part of a building onsuitable scaffolding at a suitable height, such scaffolding or supporttherefor forming no part of my invention and being alterable to suit thestructural characteristics of the buildingin which it is to be mounted.

My invention comprises a hopper A, snitably mounted upon beams B,forming a part of the scaffolding. A rotating member 0, comprising acentral cylindrical receptacle and a plurality of radial spouts D, ismounted below said hopper A, the spout of the latter projecting intosaid central receptacle. Said rotating member 0 is mounted upon theupper end of a vertical shaft E, journaled in a bearing F, carried bycross-pieces G, extending between depending beams H, forming part of thescafiolding. The said shaft E carries a bevel-gear I, intermeshing witha bevel-pinion J on a horizontal shaft K, journaled in bearings L and M,the former of which is carried by said cross-pieces G and the latter bya depending frame N, secured to said beams B. Said shaft carries apulley O, by means of which it is geared to a source of power. The saidrotating member 0 revolves within a circular frame or drum P of largerdiameter than the circle described by the spouts D, which is hung fromsaid beams 13 by means of straps Q.

A track for cars carrying ore or any other suitable conveyer may lead tosaid hopper A, the ore fed to same passing down into the centralreceptacle of said rotating member 0, whence it follows the spouts D,owing to the centrifugal force, and is thrown against said frame or drumP, dropping thence upon a heap R on the ground. By this means the oresof different grades become thoroughly mixed, so that all parts of theheap thus formed are of a uniform grade and value.

In order to obtain samples of the ore by means of which to gain a fairestimate of the days yield, I provide a trough S, extending radiallyoutwardly from said drum P below said rotating member 0 from a pointwithin the circle described thereby and at a downward incline, saidtroughreceiving a given percentage of the ore distributed by saidrotating member and delivering same to a sample-box l on the ground orfloor adjacent the main heap of ore. Such samples must obviously be ofthe same grade as the main heap, so that an assay thereof will enablethe value of the entire heap to be closely estimated.

I claim as my invention- In a device of the kind specified, thecombination with a hopper, of a horizontally-rotating member below thesame, comprising a central receptacle into which the delivery end ofsaid hopper projects, and a plurality of radial spouts adapted towithdraw the ore from said receptacle and distribute same by centrifugalforce, and a member surrounding said rotating member and of greaterdiameter than the sweep of the latter against which the ore is adaptedto impinge and drop, whereby a heap of uniform grade is adapted to beformed, and an inclined radial trough mounted below said rotating memberand extending outwardly from a point Within the sweep thereof andintersecting the circle of falling ore, said trough being adapted toreceive a small portion of the ore and deliver same at a point beyondthe edge of the main heap.

In testimony whereof I affix my signature in presence of two witnesses.

J OSFJ MAXIMILIANO DAMM.

Witnesses:

FRANO CLARK, PEORA ALVAREZ.

